282 GEOLOGICAL SURVEY OF CANADA. 



igth, 1887. (Macoun.) Chilliwack Valley, B.C., 1901. (/. M. 

 Macoun.) 



690. H. procurrens, (MITT.) RAN. & HERVEY. 



H. aberram, Ren. & Card. ; Can. Cat. Pt. VI., 183. 



i 



Specimens from Roger's Pass and Revelstoke are correctly 

 named. (Macoun?) On rocks at Skagway and Canon City^ 

 Alaska. (Macoun.} 



689. H. heteropterioides, BEST ; Bull. Torr. Bot. Club, Vol. 



XXVIII., 128. 

 H. heteroptet um, Can. Cat. Pt. VI., p. 182 in part. 



Plants quite small, in intricate spreading tufts, dark green. 

 Stems, without central strand, 3-6 cm. long, variously divided and 

 irregularly branched ; larger branches (secondary stems) ascend- 

 ing-erect, pinnate to bipinnate ; branchlets fasciculate, often 

 tufted ; leaves of primary stems erect-spreading, lower sometimes 

 recurved at tips, papillose, .25-.35 mm. wide, .4-.$ mm. long ; 

 from a cordate, subdecurrent base, triangular to ovate-lanceolate, 

 finely pointed, margins plane, papillose-denticulate, costa 

 thin, usually short, rarely narrow and longer, reaching the 

 middle ; leaves of secondary stems appressed when dry, 

 erect-spreading when moist, cordate-triangular, acute to 

 acuminate, margins papillose-serrulate ; ultimate branch-leaves 

 ovate, acute to narrowly acuminate, cells of the basal- 

 central area of the stem leaves, not so clearly differentiated 

 as in the preceding species, oblong to sublinear about 

 006 mm. wide, 2-4 times as long, those of the basal margins 

 quadrate, passing into oval-oblong above, each cell with 2-5 small 

 bead-like, irregularly distributed papillae on both surfaces; apical 

 cells of ultimate branch-leaves quadrate to oblong, crowned with 

 2-4 papillae. Dioecious : perichetial bracts whitish, flexuose- 

 spreading, inner long and narrowly acuminate, margins denticu- 

 late, pedicels smooth, flexuose-curved, about 1.5 cm. long ; cap- 

 sule oval, horizontal, short-necked, pachydermous, contracted 

 under the mouth when deot erculate ; urn 1.5 mm. long, .7 mm. 

 wide ; exothecial cells thick-walled, oval to oblong ; annulus 

 broad, of 2-3 rows of large cells, deciduous; exostomial teeth yel- 

 lowish, strongly lamellate, confluent at the base ; endostomial 

 band about one-half the length of the teeth ; segments slightly 



